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臺大管理論叢

27

卷第

3

83

Case1

自變數獨立

(無共線性)

Case2

自變數相依

(壓抑/重疊效果)

Case3

自變數相依

(增強效果)

DV IV1 IV2 IV3 IV4

DV IV1 IV2 IV3 IV4

DV IV1 IV2 IV3 IV4

β

β

2

rβ Dg RIW β

β

2

rβ Dg RIW β

β

2

rβ Dg RIW

IV3

.200 .040 .040 .040 .040 -.013 .000 -.003 .014 .019 -.778 .605 -.156 .129 .129

LL

.161

.024 .025 .025 -.066

-.010 .008 .012 -.836

-.200 .120 .120

UL

.242

.059 .059 .059 .040

.011 .025 .033 -.727

-.108 .138 .138

IV4

.000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .267 .071 .000 .027 .027

LL

-.042

.000 .000 .000 -.050

.000 .000 .000 .231

-.015 .020 .020

UL

.041

.003 .003 .003 .042

.004 .004 .004 .302

.017 .036 .038

總和 

.560 .560 .560 .560

2.141 .463 .463 .463

2.454 .791 .791 .791

整體模型

R

2

= .560, adj

R

2

= .558

Cohen’s

f

2

= 1.273

R

2

= .463, adj

R

2

2 = .461

Cohen’s

f

2

= .862

R

2

= .791, adj

R

2

= .790

Cohen’s

f

2

= 3.784

註:表中符號

VIF

:變異膨脹係數,

r

:零階相關,

r

p

:淨相關,

r

sp

:半淨相關,

r

s

:結構係數,

β

:標準化迴歸係數,

:乘積係數,

D

g

:一般優勢指數,

RIW

:相對重要權數。

UL

LL

1,000

次偏差校正拔靴法抽樣得出的

95%

區間估計上下限。